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Katena32 [7]
3 years ago
7

What is the approximate area of a circle with a radius of 14 centimeters

Mathematics
2 answers:
stiks02 [169]3 years ago
7 0

Answer:

615.75 cm^{2} or round to 616 cm^{2}

Step-by-step explanation:

Area = \pir^{2}

R = 14

A = \pi \\ x 14^{2} = 196\pi ≈ 615.75 cm^{2}

Nostrana [21]3 years ago
6 0

Answer:

\pi \times r ^{2}  \\ \pi \times 14 \times 14 \\  = 615.75cm ^{2}

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3 years ago
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docker41 [41]

Answer:

6.25n + 3.50

$34.75

Step-by-step explanation:

Break down the important information given in the problem.

The one-time delivery fee is 3.50. This is only paid one time an never again, making it the <u>constant</u>, a number that does not change.

Each lunch costs 6.25. This amount will increase depending on how many times Mr. Jackson orders lunches, "n" times. This number is the <u>rate</u> because it changes. The rate is attached to the variable.

If you add the amounts together, that is the total cost of ordering lunches.

6.25n + 3.50

(Reember expressions do not have the equal sign).

To find the cost of ordering 5 lunches, use the expression. Substitute "n" for 5 because "n" represents the number of lunches ordered.

6.25n + 3.50

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= 31.25 + 3.50    Add the two values

= 34.75       Total cost of 5 lunches

Therefore the cost of ordering 5 lunches is $34.75.

8 0
3 years ago
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zubka84 [21]

Answer:

x=5

Step-by-step explanation:

<u>Similar Triangles</u>

By looking at the construction of the figure, we can safely assume both triangles are similar, i.e. their internal angles are equal and their sides are proportional. Following the proportion of the heights and bases of both triangles we can set this relationship:

\displaystyle \frac{45}{36}=\frac{5x}{20}

Simplifying both fractions

\displaystyle \frac{5}{4}=\frac{x}{4}

Solving for x

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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